Eco-Drive means the watch is solar powered, it has a rechargeable battery.
Reports from members in previous deals say that the rechargeable battery is still working in their older eco-drives after 10 years or more.

got me OP, wanted a turtle for ages and that ones so cheap can probably even sell it on if i do decide it's the wrong color for me :)
believe these are usually more expensive with the steel band too (as this has)?

edit: can anyone recommend a rubber band for this watch? undecided which i'd like so would prefer both

You could get a waffle strap or a tropic strap from Uncle Seiko, but they're a bit pricey at US$39 + Shipping. Looks cool on a turtle.

If you want the tropic strap for less, there's one for US$18 + Shipping at cheapestnatostraps. The tropic straps between the two companies are pretty much the same apart for the material.
I just use an Eulit perlon for my turtle instead of rubber because perlon looks cooler.

The SRP775 is a great piece, currently wearing mine! The only thing to "watch" out for with these are the miss aligned chapter rings. It appears that this is a bigger issue with the K variant compared to the J's.

Have you had your turtle serviced or regulated since you've owned it? How long have you had it for and have you noticed any change in accuracy over time? Which model turtle do you own? Sorry for all the questions, im keen to buy one but accuracy is something im concerned about

To an extent it's luck of the draw because any watch with this movement will have the same advertised time specs.

I've had mine for over a year and wear it as part of a rotation. I've done nothing to it except wear the movement in at the start. At night I place it face up and the time change is negligible. Mine is very stable. It's completely stock and unmolested

I cannot believe my package got stolen on its way and Starbuy cannot replace my order since the model was completely sold out. I've been eyeing for the turtle for years and already bought a strap for it thinking i finally got mine. I'm so devastated.

Anyone doesn't want theirs willing to sell it to me in sydney? So sad!!!